In the first sense, the dual כַּפַּיִם is normally used in place of the plural; however, when in the construct state with a following noun in the dual, the regular plural construct כַּפּוֹת is used because two duals would be redundant. Thus, the plurals of the expressions כַּף יַד‎ and כַּף רֶגֶל‎ are, respectively, כַּפּוֹת יָדַיִם and כַּפּוֹת רַגְלַיִם.